/*
 *   Copyright (c) 2008-2018 SLIBIO <https://github.com/SLIBIO>
 *
 *   Permission is hereby granted, free of charge, to any person obtaining a copy
 *   of this software and associated documentation files (the "Software"), to deal
 *   in the Software without restriction, including without limitation the rights
 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   copies of the Software, and to permit persons to whom the Software is
 *   furnished to do so, subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included in
 *   all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *   THE SOFTWARE.
 */

package slib.platform.android.ui.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewParent;

import slib.platform.android.Logger;

public class UiTextArea extends UiEditView {

	public UiTextArea(Context context) {
		super(context);
		initializeTextArea(context);
	}

	public UiTextArea(Context context, AttributeSet attrs) {
		super(context, attrs);
		initializeTextArea(context);
	}

	public UiTextArea(Context context, AttributeSet attrs, int defStyleAttr) {
		super(context, attrs, defStyleAttr);
		initializeTextArea(context);
	}

	private void initializeTextArea(Context context) {
		_setMultiLine(this, true);
	}

	@Override
	public boolean onTouchEvent(MotionEvent ev) {
		int action = ev.getAction();
		if ((action == MotionEvent.ACTION_MOVE || action == MotionEvent.ACTION_DOWN) && isScrolling()) {
			lockScrollParent(true);
		} else {
			lockScrollParent(false);
		}
		return super.onTouchEvent(ev);
	}

	void lockScrollParent(boolean lock) {
		ViewParent view = getParent();
		for (;;) {
			if (view == null) {
				return;
			}
			if (view instanceof UiScrollView) {
				((UiScrollView)view).setLockScroll(lock);
				return;
			} else if (view instanceof UiHorizontalScrollView) {
				((UiHorizontalScrollView)view).setLockScroll(lock);
				return;
			}
			view = view.getParent();
		}
	}

	boolean isScrolling() {
		try {
			if (computeVerticalScrollRange() > computeVerticalScrollExtent()) {
				return true;
			}
		} catch (Exception e) {
			Logger.exception(e);
		}
		return false;
	}

}
